Commercial Air Conditioning
SERVICE MANUAL
Models
Features
The outdoor can match with both of duct and cabinet type indoor unit
The indoor unit is identical for heat pump and cooling only unit
Infra red remote controller or wired controller
Central control and full automation, if connected with a central controller
24-hour timer (standard)
Auto-restart function
Strong energy distribution
Manual code: SYJS-001-05REV.0
Edition: 2005-01-04
AD96NAHAEA
AP96NACAEA
AU96NATAEA
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
CONTENTS
Contents………………………………………………………...2
1. Description of products & features………………………..3
2. Specification…………………………………………………5
3. Safety precaution……………………………………………10
4. Net dimension of indoor and outdoor……………………..12
5. Installation instructions………..……………………………15
6. Parts and functions…………………………………………37
7. Remote controller functions……………………………….38
8. Refrigerant diagram…………………………………………58
9. Electrical control functions………………………………….59
10. Diagnostic information (trouble shooting)……………….67
11. Electrical data………………………………………………71
12. Exploded view and parts lists…………………………….73
13. Performance curves……………………………………….81
14. Noise level charts………………………………………….85
15. Air velocity distribution…………………………………….89
2
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
1.DESCRIPTION OF PRODUCTS & FEATURES
1.1. Products code explanation
A U 96 N A T A E A
Climate type: T1 (see table 1)
Design number (A stands for design sequence, fixed
frequency type)
Product type: A stands for heat pump type, refrigerant is R22
B stands for heat pump type, refrigerant is R407C
M stands for cool only type, refrigerant is R22
N stands for cool only type, refrigerant is R407C
Appearance character
Product series: A stands for 1 to 1
Applicable voltage: 2 stands for 220-230V/50Hz,
4 stands for 220V/60Hz，N stand for 380-400V/50Hz
Cooling / Heating capacity,96=96000BTU/h
Product type : “B” stands for cassette type, “C” stands for
convertible type, ”D” stands for duct, “S” stands for split
type, ”Q” stands for chiller system, "E" stands for ceiling
concealed type, “U” stands for outdoor unit
Air Conditioner
1.2 Brief Introduction for T1、T2、T3 working condition
Climate type
Type of Air
Conditioner
Cooling Only
Heat pump
Electricity Heating
T1 T2 T3
18 ℃~43℃ 10℃~35℃ 21℃~52℃
-7℃~43℃ -7℃~35℃ -7℃~52℃
~43℃ ~35℃ ~52℃
1.3 Operating Range of Air Conditioners
Temp. Mode Rated Maximum Minimum
Cooling
Heating
Indoor
Outdoor
Indoor
Outdoor
DB ℃
WB ℃
DB ℃
WB ℃
DB ℃
WB ℃
DB ℃
WB ℃
27 32 15
19 23 14
35 43 -5
24 26 6
20 27 10
14.5 --- --
7 23 -10
6 18 ---
3
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
1.4 Product features
Universal outdoor unit
The outdoor unit can match with duct and cabinet type indoor unit.
High static pressure design for duct unit
The designed exterior static pressure can be adjusted from 0Pa~196Pa. The air outlet duct can be
selected freely, generally, there are two types as follow:
A:Main duct system
B:Branch duct system
Duct unit: super thin unit body, no occupying the indoor space
The whole unit can be concealed in the building, without effect of the indoor décor.
With air inlet filter, enhance the air quality
The high efficiency filter can collect the dirt and remove the bacterium, which can be installed on the
easy-to-unload place, convenient to be cleaned.
Cabinet unit: newly designed luxurious LCD operation panel
On the front panel, you can find there is a luxurious operation panel. Just slightly pressing, the
comfort will come around you. Meanwhile, the unit is equipped with the advanced large angel remote
receiving technology.
Multiple control types
or ( + )
The duct and cabinet unit can be controlled be the wired controller or by the infrared controller. The
cabinet type unit can be controlled with the infrared controller. If the unit is duct type and you want
infrared type, you need to add an infrared controller YR-H71.
And the infrared controller can be equipped with the controller holder, convenient to fix the
remote controller.
4
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
Convenient infrared remote controller
The newly designed infrared remote controller YR-H71 can be used for all indoor units of single type,
multi split type, and H-MRV type except for the cabinet unit. This controller can be compatible with all old
remote controllers except for that of cabinet units.
Auto–restart function (optional)
All indoor units have auto-restart function. When the power supply cut off suddenly, the unit will
automatically recover the previous running mode once the power supply is on.
Self-diagnostic function
In the course of operation, if the failure occurs, the failure code will display on the wired controller or
on the operation panel. Then according to the failure code chart, you can eliminate the failure soon.
Central control function, if connected with a detector and a central
controller
24-hour timer (standard)
Changeover function
The unit can realize changeover function to enhance the reliability and the precision by connecting a
detector.
5
Commercial Air Conditioner Model: AU96NATAEA
ping
AD96NAHAEA, AP96NACAEA
2. SPECIFICATION
item Model
Function
Capacity BTU/h
Capacity W
Sensible heat ratio 75%
Total power input
Max. power input
EER or COP W/W
Dehumidifying capacity
Power cable
Signal cable section
Connecting cable section
Wired control cable for wired control unit section
Power source N, VAC, Hz
Running /Max.Running
Start Current A
Class of anti electric shock
Circuit breaker A
Max. operating pressure of heat side Mpa
Max. operating pressure of cold side Mpa
Outdoor unit
PIPING
Norminal condition: indoor temperature (cooling): 27℃DB/19℃WB, indoor temperature (heating): 20℃DB
Outdoor temperature(cooling): 35℃DB/24℃WB, outdoor temperature(heating): 7℃DB/6℃WB
The noise level will be measured in the third octave band limited values, using a Real Time Analyser calibrated sound intensity meter. It is a sound
pressure noise level.
W
W 13000 13000
10‐³×m³/h
A / A
Unit model (color)
Model / Manufacture
Compressor
Fan
Heat exchanger
Dimension
Drainage pipe (material , I.D./O.D.) mm
Refrigerant control method mm/mm
Defrosting
Volume of Accumulator L
Noise level dB(A)
Type of Four way valve
material of reduce noise
crankcase heater power W
Weight (Net / Shipping)
Refrigerant
Pipe
Connecting Method
Between I.D &O.D
Oil model
Oil type
Oil charging
Type
Protection type
Type × Number
Speed r/min
Fan motor output power W
Air-flow(H-M-L) m³/h
Type / Diameter mm
Total area m²
Temp. scope
External
Package
Type / Charge g
Recharge quantity g/m
Liquid mm
Gas mm
MAX.Drop 15
MAX.Pi
（L×W×H）
（L×W×H）
length
cm³
℃
mm×mm×mm
mm×mm×mm
kg / kg
m
m
cooling heating
92000 96000
27000 28000
10000 9000
2.70 3.11
cooling 18/22.8 heating16.5/22.8
inner thermal protection, 3-phase protection, pressure
cooling: 43~60 / heating: 6~7
AU96NATAEA
/
10
5*6.0
1*1.5
3*2.5
3*0.5
3, 380-400, 50
36
Ⅰ-class
40
3.0
3.0
AU96NATAEA（WHITE）
JT300D-Y1L / DAIKIN
/
MINERAL
3000
scroll
direct startupStarting method
Axial × 1
/
350
10000/-/6000
TP2M / 9.52x0.35
about 1.8
990*760*1700
1150*925*1870
/
Capillary tube
Automatic
NO
≤65
/
XPE
34*2
161/185
R22/8500
115
12.7
28.58
flared
30
6
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
item Model
Function
Capacity BTU/h
Capacity kW
Sensible heat ratio 75%
Total power input
Max. power input
EER or COP W/W
Dehumidifying capacity
Signal cable section
Connecting cable section
Power source N, V, Hz
Norminal condition: indoor temperature (cooling): 27℃DB/19℃WB, indoor temperature (heating): 20℃DB
Outdoor temperature(cooling): 35℃DB/24℃WB, outdoor temperature(heating): 7℃DB/6℃WB
The noise level will be measured in the third octave band limited values, using a Real Time Analyser calibrated sound intensity meter. It is a sound
pressure noise level.
Unit model (color)
Fan
Heat exchanger
Dimension
Indoor unit
Drainage pipe (material , I.D./O.D.) mm
Control type (Remote /wired)
Fresh air hole dimension mm
Electricity Heater
Noise level (H-M-L)
Weight (Net / Shipping)
Type × Number
Speed(H-M-L) r/min
Fan motor output power W
Air-flow(H-M-L) m³/h
Type / Diameter mm
Total Area m²
Temp. scope
External
Package
（L×W×H）
（L×W×H）
cooling heating
92000 96000
27000 28000
W
W 13000 13000
10‐³×m³/h
℃
mm×mm×mm
mm×mm×mm
kW
dB(A)
kg / kg
10000 9000
2.70 3.11
AD96NAHAEA
/
10
1*1.5
3*2.5
1, 220-230, 50
AD96NAHAEA/grey
Centrifugal×2
1070±30/860±40/960±50
270
3600
TP2M/Φ9.52
0.41
2-7
1570*840*360
1800*980*495
PVC 18/20
Wired
/
0
58/-/51
92/100
7
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
item Model
Function
Capacity BTU/h
Capacity kW
Sensible heat ratio 75%
Total power input
Max. power input
EER or COP W/W
Dehumidifying capacity
Signal cable section
Connecting cable section
Power source N, V, Hz
Norminal condition: indoor temperature (cooling): 27℃DB/19℃WB, indoor temperature (heating): 20℃DB
Outdoor temperature(cooling): 35℃DB/24℃WB, outdoor temperature(heating): 7℃DB/6℃WB
The noise level will be measured in the third octave band limited values, using a Real Time Analyser calibrated sound intensity meter. It is a sound
pressure noise level. The detailed method please refer to the following information:
Unit model (color)
Fan
Heat exchanger
Dimension
Indoor unit
Drainage pipe (material , I.D./O.D.) mm
Control type (Remote /wired)
Fresh air hole dimension mm
Electricity Heater
Noise level (H-M-L)
Weight (Net / Shipping)
Type × Number
Speed(H-M-L) r/min
Fan motor output power W
Air-flow(H-M-L) m³/h
Type / Diameter mm
Total Area m²
Temp. scope
External
Package
（L×W×H）
（L×W×H）
cooling heating
92000 96000
27000 28000
W
W 13000 13000
10‐³×m³/h
℃
mm×mm×mm
mm×mm×mm
kW
dB(A)
kg / kg
10000 9000
2.70 3.11
AP96NACAEA
/
10
1*1.5
3*2.5
1, 220-230, 50
AP96NACAEA/ivory white
Centrifugal×2
630±30/420±40/360±50
250
4800
TP2M/Φ9.52
0.41
2-7
1200*320*1850
1360*510*2030
PVC 18/20
Remote
/
0
58/-/51
102/110
8
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
Installation state: the unit should be placed on the flat floor or be mounted in horizontal direction.
Testing method:
standing-on-floor unit: If the unit cooling
capacity is over 28000W, the noise level should
be measured at the front, left, right directions
respectively.
duct unit without auxiliary duct:
2m
duct
1m
1m
1.4m
outdoor unit:
1.air outlet from side: the noise level is the average sound pressure level measured from front, left, right
directions.
2.air outlet from top: the noise level is the average sound pressure level measured from front, back, left, right
directions.
measured point:
H ( height to the ground) = (h (unit height) + 1m) /2
and, it is 1m to each side.
h
Note: ⊙ is the real time analyser position
9
1m
1m
1m
1m
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
3. Safety precaution of indoor and outdoor
Carefully read the following information in order to operate the airconditioner correctly.
Below are listed three kinds of Safety Cautions and Suggestions.
WARNING!
CAUTION!
INSTRUCTIONS: These information can ensure the correct operation of the machine.
Be sure to conform with the following important Safety Cautions.
The Safety Cautions should be at hand so that they can be checked at any time when needed.
If the conditioner is transferred to the new user, this manual should be as well transferred to the new user.
Incorrect operations may result in severe consequences of death or serious injuries.
Incorrect operations may result in injuries or machine damages; in some cases may
cause serious consequences.
If any abnormal phenomena is found
(e. g.smell of firing), please cut off the
power supply immediately, and contact
the dealer to find out the handling
method.
WARNING!
In such case, to continue using the
conditioner will damage the conditioner,
and may cause electrical shock or fire
hazard.
switch
off
After a long time use of air-conditioner
the base should be checked for any
damages.
If the damaged base is not repaired, the
unit may fall down and cause accidents.
Don't dismantle the outlet of the
outdoor unit.
The exposure of fan is very dangerous
whichmay harm human beings.
When need maintenance and repairment,
call dealer to handle it.
Incorrect maintenance and repairment
may cause water leak, electrical shock
and fire hazard.
10
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
Installed electrical-leaking circuit
breaker.
It easily cause electrical shock without
circuit breaker.
Air-conditioner can't be installed in
the environment with inflammable
gases because the inflammable gases
near to air-conditioner may cause fire
hazard.
Please let the dealer be responsible for
installing the conditioner.
Incorrect installation may cause water
leak, electrical shock and fire hazard.
WARNING!
No goods or nobody is permitted to
placed on or stand on outdoor unit.
The falling of goods and people may
cause accidents.
Don't operate the air-conditioner with
damp hands.
Otherwise will be shocked.
Call the dealer to take measures to
prevent the refrigerant from leaking.
If conditioner is installed in a small
room be sure to take every measure in
order to prevent suffocation accident
even in case of refrigerant leakage.
When conditioner is deinstalled or
reinstalleddealer should be responsible
for them.
Incorrect installation may cause water
leaking, electrical shock and fire hazard.
Connect earthing wire.
Earthing wire should not be connected to the gas pipe, water pipe,
lightning rod or phone line, in-correct
earthing may cause shock.
Only use correctly-typed fuse.
May not use wire or any other materials
replacing fuse, other-wise may cause
faults or fire accidents.
Use discharge pipe correctly to ensure
efficient discharge.
Incorrect pipe use may cause water
leaking.
11
Earthing
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
4. Net dimension of indoor and outdoor
Outdoor dimension
9D<=A78;63
.1-
.23-
66-
33-
43-
33-
61-
12
4--
.2-
15
/3
..2
160
3/
./-
./-
52
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
Model: AD96
1690
25
1640
100
25
12.7(1/2")
18
80
830
794
28.58(1-1/8")
Control Box
Gas pipeLiquid pipe
18
60
1500
Air inlet
200
M10x4pcs
13
163
35
M5x20pcs
138
13
250
1570
13
13
65
138
163
35
95
60
6x200=1200
25
A
310
360
106
DRAIN PIPE VP25
Installation dimension
Over 900 Over 900
80
30
510
185
530
25
170
Check Hole
(600x600)
over 400
(900x1730)
25
49
45
13
138
60
Over 100
60100
M5x20pcs
35
900
35
Air outlet
6X200=1200
1450
Ceiling
200
138
138
13
138
60
Over 300
Over 200
13
250
77
13
13
(mm)
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
Model: AP96
1200
1148
A
105
270
200
air outlet
power terminal block
179
terminal block center
650
1850
813
air inlet
880
terminal block center
787.5
40
1192.5
50
50
installation space
1000
50
100
air outlet
600
air inlet
15
19
36
8- 4manual tap
72
83
83
8 300
100
1222.5
315 442
8
50200
view A
82
80
150
adjustment range
15
142
320
277
272
218
310
20-50
liquid side
gas side
drain water
98
142
20-50
425 5050 50 425
1828
95
78
14
(mm)
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
5. Installation Instructions
5.1 Outdoor installation procedure
Selection of installation site
Warning
It should be installed at places where it is firm enough to withstand the weight of the air
conditioner to prevent falling.
Typhoon and earthquake prevention. It should be installed according to specific
requirements.
Inasppropriate installation may lead to accidents.
Installtion space
(1)During installation, connect the outdoor unit and align
the mounting surface(See the figure on the right).Mount
the electric distribution device on the external side of
the unit in accordance to the installation instructions for
electric distribution device.
Air inlet
Air inlet
Blow out
Air inlet
maintenance plate
(2)To ensure good performance of the machine and facili-
tate installation and maintenance, adequate space must
be reserved (See figure on the right).
Over
20mm
Over
20mm
Over 300mm
Over
1000mm
(front side)
Over
20mm
Over 20mm
Note: Obstacles should be 2000mm off the top of the out-
door unit. Obstacles nearby should be 400mm lower
than the top of the unit.
Protection cushion
Rope
1. Handing
As there is no protective package for the outdoor unit,so
the following points merit attention:
(1) When forklift is used, insert the fork into the holes in
the base plate.
(2) When crane is used, lift the unit with 4 pieces of steel
rope with diameter above 6 mm.
(3) Put protective materials between the cable and the
unit to prevent deformation and damage of the surface.
2.Mounting
(1) The distance between two connections must not be
less than 20mm.
15
Base panel
Rope
M12 foot screw bolt
4 screws each unit
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
Refer to the following figure for the distance between the
foundation bolts.
(2)When the refrigerant pipe is connected from the bottom of
the unit,the unit should be raised at least 500mm(see the
figure below)
(3)In snowy regions,snow-proof facilities should be used(see
the figure below).
(Poor snow-proof facilities may lead to damge.To avoid
inconveniences,the unit should be raised and snow-proof
covers should be installed at the air inlet and outlet.)
(4)During installation,anti-vibration rubber pads should be used
between the machine and the bracket.
3.Connection of refrigerant pipe
1100
Through hole*15x20*
Air inlet snow-proof cover
Air inlet snowproof cover
Above 500mm
Refrigerant tube
Air outlet snowproof cover
During installation,if refrigerant leakage occurs,ventilation measures must be taken.When
refrigerant meets with fire,hazadous gas will be produced.
Warning
After installation,make sure that there is no refrigerant leakage.
Refrigerant,if meeting with heaters and stoves,ect in the room,may produce hazardous gas.
Connection of refrigerant pipe
(1) The joints of the refrigerant pipe are inside the unit.Take off the access hole cover in front of
the unit.
(2) The pipe can be connected from the front or bottom of the outdoor unit.
(3) Remove the L-shaped pipe from the valve by welding and connect the accessory pipe to the
valve.
(4) In the case of front connection,cut the accessory pipe at the height of the fixing panel.Then
join the pipe with an elbow and let it go through the fixing panel.For the convenience of maintenance,
bend the pipe down (once) and then connect pipe to the right or left.
(5) In the case of bottom connection,join the pipe with accessory pipe through the holes in the
base plate of the outdoor unit,and connect pipe the left or right or the back.
16
Bottom plate
Tube to the back
Tube to the left
Tube fixing
panel
Tube to the tight
Tube to the left
M6
M4
Access hole cover
Tube to the tight
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
(6) During welding,the gas pipe valve must be cooled down with a wet cotton cloth.
During welding of the distribution pipe
1.In case of brazing weld of joint,nitrogen must be filled in the pipe to prevent oxidization.
2.The refrigerant pipe should be newly-made and clean.During installation,do not let water and other
substance into the pipe.
3.Use two spanners to tighten the connecting nut.One spanner will make loose connection.
The torque moment should conform to the specified value.(Refer to the below)
Tube diameter
Selection of tube material and size
Determinaltion of tube diameter (Refer to the diagram on next page for steps 1,2,3,4 and 5 below)
1.Tube between the outdoor unit and the first bypass(main tube):
The diameter of the main tube and the outdoor tube should be the same.
2. Tube between bypasses(sub-tube):
The diameter of the sub-pipe is determined according to the total capacity of all the connected
indoor units.But if it is larger than the capacity of the outdoor unit,the diameter should be determined
according the capacity of the outdoor unit.
Install the nonreturn loop and oil trap
(mm)
12.70
Torque moment for
pre-installation (N.m)
49.0(5.0kgf m)
Torque moment for
tightening up (N.m)
53.9(5.5kgf m)
1.Outdoor is lower
2.Outdoor is higher
liquid nonreturn loop
Outdoor
Indoor
17
Outdoor
Indoor
Oil trap (one per
6m)
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
Crucial points:
When testing, never use oxygen,flamable and poisonous gases.
Step 1:Charge for more than 3 minutes under 0.3MPa(3.0kg/cm2g)
Step 2:Charge for more than 3 minutes under 1.5MPa(15kg/cm2g)
--Serious leakage may be found.
Step 3:Charge for more than 24 hours under 3.0MPa(3.0kg/cm2g)
--Small leakage may be found.
Check for pressure decrease
Without pressure decrease-Pass
With pressure decrease-Check for leaage.There will be a 0.01MPa(0.1kg/cm2g) pressure change
for every 1 C ambient temperature change during the 24-hour pressure charge.It should be
corrected during the test.
Indoor
Tightly
closed
Tightly
closed
Indoor unit
To the gauge
(Liquid side)three-way valve
distributor
(Liquid side)access hole
Detailed diagram of the
three-way valve
Outdoor
Solder joint
Solder joint
Three-way valve fully
closed(gas side)
Solder joint
Tightly
closed
Three-way valve fully closed liquid side
(Gas side )access hole
(Gas side)three-way valve
To the unit
Access hole
Access hole
Outdoor unit
Low-pressure
gauge
6.4
Copper
pipe
6.4
Copper pipe
High-pressure
gauge
VL VH
Gauge distributor
Relief valve
Nitrogen bottle
18
Field tube
installation
o the unit
T
Field tube
installation
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
Check for leakage
In the case of pressure decrease during steps 1 to 3 ,check the joints with the ear,hand or soapsuds for
leakage.Repair it by welding or tighten the connecting nut up.
Vacuum Pumping
Use vacuum pump to evacuate the air.Never use the refrigerant for the evacuation.
Drain off the nitrogen gas after the leak test and then connect the vacuum pump as shown in the figure
below.
The vacuum pumping must be done from both the liquid and gas inlets.
Indoor
Outdoor
Three-way valve fully
closed(gas side)
Low-pressure
gauge
High-pressure
gauge
Gauge distributor
Tightly
closed
Solder joint
Solder joint
Access hole
Tightly
closed
Solder joint
Tightly
closed
Access hole
Copper pipe
6.4
P
Vacuum pump
Indoor unit
(Liquid side)access hole
(Liquid side)three-way valve
To the gauge
distributor
Detailed diagram of the
three-way valve
Three-way valve fully closed
liquid side
(Gas side )access hole
(Gas side)three-way valve
To the unit
Outdoor unit
o the unit
T
Field tube
installation
Field tube
installation
Use a vacuum pump with high degree of vacuum(below-755mmHg) and large volume displacement
(above 40L/min)
The pumping time depends on the length of the connecting pipe.Generally,it takes about 2-3 hours.
Make sure that the Y-shaped valves on both the gas and liquid sides are closed before pumping.
If the vacuum can no reach-755mmHg within 2 hours,continue pumping for another 1 hour.
If the vacuum can no reach-755mmHg after more than 2 hour's pumping,close the valves VL and
VH on the gauge distributor and stop pumping.One hour later,check the vacuum again.If the
vacuum has changed,it means there is a leakage.Repair it.
After the above steps,replace the vacuum pump with the refrigerant pump and refill refrigerant.
Charging refrigerant
Refrigrant must be charged in liquid state.
Refrigerant bottle with or without a siphon
tube can be refilled with refrigerant upright
or upside down,Respectively.
19
Containers for R22 refrigerant must be
marked with R22 and a brown Stripe.
R407C refrigerant cannot share the same
instrument distributor and filling pipes.
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
Refilling of refrigerant
After the vacuum pumping,replace the vacuum pump with the refrigerant pump and refill refrigerant.
Calculation of refrigerant quantity
The factory filled refrigerant into the piping excludes the part of pipes according to be refilled on the site.
Refill the amount of refrigerant into the piping according to the following formula.
The factory filled refrigerant is listed in the table below:
The quantity of the refrigerant to be refilled during installation depends on the diameter and length
of the liquid piping.
The quantity of the refrigerant t be refilled on the site=Actual length of liquid tube x quantity of
refrigerant to be refilled for per meter of liquid pipe.
Recharge refrigerant
When the outdoor valve is shut,fill the refrigerant from the access hole at the gas and liquid sides.
If the required filling is impossible,open all the gas and liquid valves,then slightly shut the gas
valve, run the compressor and fill the refrigerant from the access hole at the gas side.Now adjust
the gas valve to control the refrigerant flow,which will be gasified during absorption by the system.
If there is insufficient refrigerant in the system caused by leaks,refill it after the remaining refrigerant
is recollected.
Open all valves
Open all the valves of the outdoor unit.
Heat isolation of the pipes
Separate isolation should be made for the liquid and gas pipes.
Materials used for the pipe isolation at the gas side must withstand above 120 C temperature.
For AU96NATAEA:
Charging refrigerant (R22): Before charging refrigerant, the pressure in the system
must be kept at least for 15 minutes under 130Pa, and the pressure will not go up
within 30 minutes, only in this case, the refrigerant can be filled.
When the connection pipe is less than 5 meters, additional refrigerant needs not be
charged. Once the connection jpipe is more than 5 meters, please recharge the
refrigerant as the following formula:
Refrigerant quantity=(lenth of connection pipe-5m)*115g
Detailed procedures:
a.Cut off the vacuum pump pipe to prepare charging refrigerant
b.Place the R22 container on the scales, switch off the low pressre valve of the
pressure pipe to make the liquid type refrigerant enter the system from the high
pressure side.
c.If the system pressure goes up, stop charging refrigerant and when the
refrigerant quantity arrives the rated value, switch off the high pressure valve,
then place the R22 container on the scales with the jaw to up. Open the low pressure
valve to start up the unit, at this time, the refrigerant is gas state.
When the charged refrigerant arrives the rated value, after confirming the refrigerant
quantity is proper, unload the flexible joint and install the copper nut of the connector.
20
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
Electric wiring
Note:
All the wires should be copper core wires.
The power cable of indoor unit should be equipped according to the operation manual indoor unit.
When connecting the indoor & outdoor wire, check the number of the indoor & outdoor terminals,
the terminals with the same number connected together with one wire.
Incorrect wiring will damage the controller of the air conditioner or make the unit work abnormally.
The air conditioner must use special power circuit and special air switch (40A), groundign wire.
The wiring work should be done by a qualified electrician according to the national wiring rule.
The creepage breaker must be installed. The grounding line and the neutral line of the receptacle
must be strictly separated. It is incorrect to connect the neutral line with the grounding line.
The connection type of power cord is Y connection. If the soft power cord is damaged, to avoid
risk, it must be replaced by the manufacturer or their specific repair department or similar professional
worker.
Wiring method
1.The wiring method of orbicular terminal
For the connection wire which end is orbicularterminal,
its wiring method is as the right figure shown.
Dismantle the screw and put it through the ring at
the end of the connection wire, then connect it to
the terminal block and tighten the screw.
2.The wiring method of straight terminal For those
connection wires whose end are not orbicular terminals,
their wiring method is: Loosen the connecting screw,
insert the end of the wire directly into the terminal block,
and then tighten screw. Pull the wire outwards slightly to
confirm it is held tightly.
3.Pressing method of connection wire:
After wiring, the connection wire must be pressed with wire
holding clamp. The wire holding clamp should press on the
out cover of the connection wire. As the right figure shown:
Connect wire between indoor & outdoor unit
As the wiring diagram show to arrange the connection
wire.
Note: The terminal blocks mark at the two ends of the
connection wire should be corresponding one by one,
otherwise the air conditioner cannot work normally.
The wiring method of orbicular terminal
Correct pressing
Terminal block
Wire holding clamp
Terminal block of
indoor unit
3
2
1
3
2
1
Terminal block of
outdoor unit
(Sketch map)
Y/G
L1
L3
L2
Power terminal
block of outdoor
unit
Wrong pressing
N
Power supply:
3N,380-400V,50Hz
Others
1. Power supply
The parameter of power cord is over 2.5mm .
Air conditioner must use an exclusive line (over 30A)
When installation air conditioner in a wet place, try to use a circuit breaker against
Current leakage.
For installation in other places, use circuit breaker as far as possible.
21
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
The breaker of the air conditioner should be all-pole switch ; and the distance between
its two contacts should be no less 3 mm.
Such means for disconnection must be incorporation in the fixed wiring
2. Pipe cutting and flaring
Be sure to carry out deburring after pipe cutting with a pipe cutter.
Insert flaring tool to make a flare.
A
Flaring tool
Liquid pipe 12.7mm (1/2") 1.2 ~ 2.0
Pipe dia. Dimension A(mm)
Correct
Incorrect
Installation inspection and test run:
Please operate unit according to this Manual.
Items to be checked during test run. Please made a " "in " "
Are there any gas leakage?
How is insulation at piping connection carried out?
Are electric wires of indoor and outdoor unit firmly inserted into terminal block?
Is electric wiring of indoor and outdoor securely fixed?
Is draminage securely carried out?
Is earth line ( grounding ) securely connected?
Is power supply voltage abided by the code?
Is there any noise?
Is control display normal?
Is cooling operation normal?
Is room temp. regulator normal?
Lean Damaged flare Crack Partial Too outside
3.Calculation of refrigerant density
Calculation will be made according to the following methods:
1) Total refrigerant content of each system (kg) =content of 1 outdoor system + refilled refrigerant
Content of 1 outdoor system:Factory filled refrigerant
Refilled refrigerant:Filled content during installation according to the diameter and length of the
liquid piping.
2) Calculation of the minimum room sapce (m3).
3) Calculation of refrigerant density
Total refrigerant content
Minimum room space
22
Refrigerant density:0.3(kg/m3)
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
2.Preventive measures against excess of critical value
1) Make ventilation holes
Ventilation holes should be built above and under the door.The area of each hole should not be
smaller than 0.15% of the room space.Holes can be made directly in the wall.
2) Reduce the filling content of refrigerant
Filling content of refrigerant can be reduced by shortening the distance between the indoor and
outdoor units.
By reducing the capacity of the outdoor unit.
When outdoor unit be made up of several units.the outdoor capacity of each system should
reduce.Sothe refrigerant content of system reduce.
3) Install ventilation fans.
Users can install uninterrupted ventilation fans to keep the refrigerant density under the critical
value.
If uninterrupted ventilation is impossible,a combined fanning and alarming device should be
installed in its stead (through which immediate ventilation is possible when leak occurs).
(See the figure below)
Ventilation fan and gas leak alariming device
The gas leak alarming
device should be installed
at refrigerant gas
stagnation areas
An example
Vertilation opening
23
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
Installation instruction
This manual can not include all kinds of conditions, if you have new
Notice
requirements and questions, please contact with local Haier Sales Center.
Warning
Before installing the unit, please read this manual carefully. Improper
installation may cause accidents and make unit damage or death.
Installation tools
1. Screw driver 2. Hacksaw
3. 70mm dia. hole core drill 4. Spanner (dia. 17, 27mm)
5. Spanner (14, 17, 27mm) 6. Pipe cutter
7. Flaring tool 8. Knife
9. Nipper 10. Gas leakage detector or soap water
11. Measuring tape 12. Reamer
13. Refrigerant oil 14. Lead-solder tool
Standard accessories
Following parts shall be field supplied
Parts in the following list are
accessories for the unit installation
which can be used if necessary.
No. QTY
Mark
A
Parts name
Adhesive tape
Shape and description
1
Fall-prevention fitting metal
1
Pipe clip
B
C
Connecting hose
D
Drain hose
E
Insulation material
2
Self-tapping scerw
3
4
Wooden bolt
Wall hole cover
5
2
2
24
Putty
F
5
Piping hole cover
1
6
L-shaped metal
2
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
Installation procedure
1. Before installation
[Before finishing installation, do not throw the attached installation parts away.]
2. Selection of installation place
Confirm the route to carry the units to the installation place.
Do not remove the package of the unit, before carrying it to the installation place.
When have to remove the package, use a soft material or protection board with rope to lift
the unit to prevent the unit from damage or bumping scrape.
Select the firm place that will not influenced by vibration and can bear the weight of the
unit
Select the place with easy drainage and place can perform outdoor unit pipe connecting.
Select the place far away from heat source, vapor source and direct sunshine to avoid
the causing of the trouble in operation parts and the deformation of the casing.
Select the place where the cool air or warm air can evenly spread to every corner of the
room.
Select the place near power receptacle leaving sufficient space around the unit. (Referring
to installation diagram)
Avoid the following installation places
Place with oil fog splash and much vapor (e.g. mechanical plant and kitchen, etc.) to prevent
heat exchanger from performance lowering and plastic parts from corroding to damage.
Place may generate or keep corrosive gas (sulfur dioxide, etc.), flammable gas (diluent,
gasoline, etc.) to prevent heat exchanger from corroding, plastic parts from damage and
flammable gas from causing fire accident.
Hospital, etc. places near the machine generates electromagnetic wave or high frequency
signal to prevent the mixed wave from causing wrong action of the control parts.
Place can be blown by the sea wind (coastal area) to prevent the casing and heat exchanger
from corroding.
(Indoor unit) please keep the spaces larger than the following dimension.
3. Installation space
50
Unit (mm)
25
600
50
50
1000
600
600
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
Installation of indoor unit
Selection of installation place
Place where it is easy to route drainage pipe and outdoor piping.
Place away from heat source and with less direct sunlight.
Place where cool and warm air could be delivered evenly to every corner of the room.
Place near power supply socket. Leave enough space around the unit (refer to installation
drawings).
Fixing of the unit
1.
Position of the wall hole
Wall hole should be decided according to installtion place and piping direction. (refer
to installation drawings)
2.
Making a wall hole
Drill a hole of 70mm dia. with a little slope towards outside.
Install piping hole cover and seal it with putty after installation.
INDOOR
wall hole
70mm
OUTDOOR UNIT
wall thinkness
Fixing of indoor unit
To prevent it from fall off, please fix the unit with fall-prevention fitting at wall and Lshaped metal at floor.
Self-tapping
screw
all-prevention fitting metal (accessory)
Wood screw
L-shaped metal
(accessory)
( Cross section of wall hole )
Please install the whole unit
horizontally,with a slop of 1
degree at front and rear,left
and right.
Installation of fall-prevention fitting metal:
Fix the fitting metal to the wall by screws so that there is no clearance between them.
With the unit set up vertically, fix the fitting metal to the unit with screws while making an adjustment
at the long portion of the hole so that there is no clearance between the upper surface and the
fitting metal.
26
Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
Installation of L-shaped metal
Fix to the unit by screws so that there is no clearance between the fitting metal and the unit.
After confirming that the unit has been set up vertically to the floor, fix it to the floor by bolt.
Piping connection
Connecting method
1.
Apply refrigerant oil at half union and flare nut.
To bend a pipe, give the roundness as large as possible not to crash the pipe.
When connecting pipe, hold the pipe centre to centre then screw nut on by hand,refer to Fig.
Be careful not to let sundries, such as sands enter the pipe.
Forced fastening without centering may
damage the threads and cause a gas leakage.
Liquid pipe 12.7mm(3/8")
Pipe diameter Fastening torque
42N.m
2. Piping connection of indoor unit
Arrangement of piping and drainage pipe
After opening inlet grill, you will see a control box as shown in the Fig.
Remove the cover before working.
Cut away, with a hammer or a saw, the lid for piping according to piping direction.
27
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